摘要
为了选育“春雪”早花流苏良种,以2年生的流苏嫁接苗为研究对象,建立对比试验林,观测并分析“春雪”流苏与普通流苏之间的年生长发育规律。结果显示,与生长6~7年才开花的普通流苏相比,2年生早花流苏的童期短;同一年开花时间,早花流苏比普通流苏花期早10 d左右。2年生早花流苏与普通流苏各生长指标在每年生长变化中,树高、基径差异显著;着叶数、落叶数和一级侧枝数差异不显著。
In order to select early-flowering fine variety"Chunxue"of Chionanthus retusus,test plantations were established with 2-year-old grafting plantlets of Chionanthus retusus as the study objects to observe and analyze the annual growth and development regularities of this variety and the common individuals of this species.The results showed that,compared with the common individuals which usually flowered after 6~7 years of growth,the 2-year-old early-flowering variety had a shorter juvenile phase and flowered 10 days earlier in a year.Of the growth index annual changes between the 2-year-old early-flowering variety and common individuals,there were significant differences in the height and basal diameter,but no significant differences in the numbers of leaves,fallen leaves and primary lateral branches.
作者
严林浩
段晓慧
王晓
朱小龙
彭爽
YAN Linhao;DUAN Xiaohui;WANG Xiao;ZHU Xiaolong;PENG Shuang(Heiyan Township Management Administration of Henan Funiushan National Nature Reserve,Nanyang 474250,Henan,China)
出处
《安徽林业科技》
2019年第5期22-26,共5页
Anhui Forestry Science and Technology
关键词
流苏
良种选育
年生长差异分析
Chionanthus retusus
Selection of fine varieties
Analysis on annual growth differences
